What is i18n-at?

i18n-at is a type-safe internationalization tool designed specifically for Next.js App Router applications. It brings a fresh approach to managing translations with its co-location first philosophy.

🏗️ Co-location First

Unlike traditional i18n libraries that force you to manage translations in separate files, i18n-at lets you define and use messages in the same place. This means:

• 📍 Messages live next to their usage - Keep translations close to your components
• 🧹 Easy maintenance - Refactor components and translations move with them

🛡️ 100% Type-safe

With full TypeScript support, you'll catch translation errors at compile time:

• ✅ Autocomplete for all message paths
• ✅ Type checking for interpolation parameters
• ✅ IDE code jumping
• ✅ No more runtime translation key errors

⚡ Developer Experience

Designed with developer productivity in mind:

• 1-line declaration - const { t, m } = useI18n(messages)
• Zero configuration - Works out of the box with Next.js
• Instant feedback - TypeScript errors guide you

🎯 Perfect for Next.js

Built specifically for Next.js App Router:

• Server Components support - Use translations in RSC
• Client Components support - Hooks for client-side usage